Question

Justine enrolls in a music program. The cost of the program includes a one-time registration fee of $45 and a fee of $9 per lesson. If the average cost per music lesson is $12 and Justine has taken x classes, which equation represents this scenario?

Answer 1

12 = 45 + 9X

---------------

x

Explanation:

Answer 2

`12 =(45+9x)/(x)`

Explanation:

Registration fees = $45

Fees per lesson of music = $9

Let x be the number of lessons

So, fees of x lessons = 9x

So, Total fees =
`45+9x`

Now we are given that the average cost per music lesson is $12

`Average =\frac{\text{Total observations}}{\text{No. of observations}}`

A.T.Q

`12 =(45+9x)/(x)`

Hence the equation represents this scenario is
`12 =(45+9x)/(x)`